A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5925-00-929-4042
NSN 5975-01-154-6893
NSN 6650-00-629-8027
NSN 5835-00-233-6327
NSN 6650-01-048-1468
NSN 5935-01-023-0789
NSN 6645-01-393-4037
NSN 5950-00-036-9327
NSN 6145-00-871-9112
NSN 6145-00-987-3401
NSN 2925-01-560-4123
NSN 6220-01-571-2673